Node.js服务器只监听ipv6

Question

我在端口5403上运行node.js服务器.我可以在这个端口上远程访问私有IP,但是无法在同一端口上telnet到公共ip.

我假设这是因为node.js只是在监听ipv6.这是结果

netstat -tpln

(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
PID/Program name
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      
-
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      
-
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      
-
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      
-
tcp6       0      0 :::5611                 :::*                    LISTEN      
25715/node
tcp6       0      0 :::22                   :::*                    LISTEN      
-
tcp6       0      0 ::1:631                 :::*                    LISTEN      
-
tcp6       0      0 :::5403                 :::*                    LISTEN      
25709/node

如何让节点服务器监听ipv4

Answer 1

你打电话时需要指定一个IPV4地址listen(),我对http模块有同样的问题.如果我用这个:

var http = require('http');

var server = http.createServer(function(request, response) {
...
});

server.listen(13882, function() { });

它只能监听IPV6,你可以从netstat输出中看到:

$ netstat -lntp
Proto  Recv-Q  Send-Q  Local Address  Foreign Address  State
tcp6        0       0  :::13882       :::*             LISTEN

但是,如果我指定这样的IPV4地址:

var http = require('http');

var server = http.createServer(function(request, response) {
...
});

server.listen(13882, "0.0.0.0", function() { });

netstat会将服务器报告为侦听IPV4:

$ netstat -lntp
Proto  Recv-Q  Send-Q  Local Address     Foreign Address  State
tcp         0       0  0 0.0.0.0:13882   0 0.0.0.0:13882  LISTEN

我正在使用Ubuntu 16.04和npm 5.3.0.

HTH